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Note 7 - Equity-accounted Investment (Tables)
3 Months Ended
Oct. 31, 2020
Notes Tables  
Equity Method Investments [Table Text Block]
Balance, July 31, 2020
  $
11,515,327
 
Share of loss from URC
   
(703,605
)
Translation gain
   
62,761
 
Balance, October 31, 2020
 
$
10,874,483